Dillon

A unisex name of Irish origin, meaning loyal; from gaelic dillidh.

Babies a year
583
the US, 2017
Rarity
Uncommon
among names in use
US popularity
#930
down from #868
UK popularity
#822
39 babies

How Dillon has moved

US popularity rank, 20152025. Lower is more popular.
#372#689#1006201520202025#930

View as table
YearUS rank
2015#448
2016#459
2017#525
2018#592
2019#640
2020#668
2021#670
2022#726
2023#766
2024#868
2025#930

In 2025, 39 babies in England and Wales were named Dillon. In the US, 583 were, though that figure is from 2017 — the most recent full year we hold. Its US peak was 5,060 in 1992.

Looking further back: between 1880 and 2008, Dillon was most common in 1995, when it went to 0.15% of American babies of that sex.

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